1. WHAT IS HYDRATED LIME?
Hydrated lime (HS code 252220), or slaked lime, is widely used in industrial and agricultural applications. It is produced by reacting quicklime (CaO) with water to form calcium hydroxide (Ca(OH)₂). The product typically comes in a white, odorless powder that easily dissolves in water.
2. PRODUCTION PROCESS OF HYDRATED LIME
Quicklime, with the chemical formula CaO, is the primary raw material for producing hydrated lime. When water comes into contact with quicklime, a reaction occurs, forming calcium hydroxide and releasing heat. If the right amount of water is added, this process produces dry fine powder Ca(OH)₂, following the chemical equation: CaO + H₂O → Ca(OH)₂ + heat
3. PROPERTIES OF HYDRATED LIME
- Strong alkalinity and reactivity, making it effective for pH adjustment and chemical processing.
- Fine white powder, odorless and easily dissolves in water.
- Moisture absorption and stability, enhancing its effectiveness in industrial applications.
- Antimicrobial and disinfecting properties, widely used in sanitation and agriculture.
- Heat resistance and durability, improving the strength of construction materials.
4. THE FACTORY
Factory address: Ha Nam province, Vietnam
Capacity: 8000 MT/month
5. MAIN APPLICATION
We are supplying high-purity hydrated lime with Ca(OH)2 up to 95%
Hydrated Lime in Wolfram Mining
Hydrated lime is used in wolfram ore processing to regulate pH levels, creating optimal conditions for the flotation process. This product helps precipitate iron and aluminum impurities, preventing their interference and enhancing the efficiency of wolfram separation.
Hydrated Lime in Nickel Mining
In the high-pressure acid leaching (HPAL) process, hydrated lime is used for neutralization and wastewater treatment, as well as for removing impurities such as iron and other heavy metals from nickel ore.
Hydrated Lime in Cooper Mining
Hydrated lime is used in the flotation of sulfide ores and in the leaching process of oxide ores with acidic solutions. The primary products include copper concentrate (25-30% Cu) and cathode copper (>99% Cu).
Hydrated Lime in Lithium Mining
Hydrated lime is utilized in lithium ore processing to neutralize acids in wastewater following the lithium extraction process. It aids in removing impurities like magnesium, ensuring higher lithium purity while improving water treatment efficiency.
Hydrated Lime in Calcium Hypochlorite
Hydrated lime (Calcium hydroxide) is used as a high-purity raw material in the production of calcium hypochlorite, with the chemical formula Ca(ClO)₂.
Hydrated Lime in Lime Mortar
Hydrated lime is used in lime mortar to enhance water retention, improve plasticity, and facilitate workability. It helps mortar set more slowly, resist shrinkage, self-heal microcracks, and reduce efflorescence.
Hydrated Lime in Sugar Refining
Provides calcium hydroxide without requiring heat treatment, functioning as an efficient pH regulator. The product helps remove impurities and color from sugar solutions, ensuring high purity and superior quality during production.
Hydrated Lime in Aquaculture
Hydrated lime is used to neutralize acidity in ponds. In shrimp farming, it helps regulate microbial biomass, remove phosphate and carbon dioxide, improve water quality, and create a stable aquaculture environment.
Hydrated Lime in Flue Gas Desulfurization (FGD)
Hydrated Lime acts as an effective reactant, aiding in the absorption and treatment of industrial exhaust gases, particularly in power generation, to ensure compliance with air quality standards.
Hydrated Lime in Wastewater Treatment
Hydrated lime readily converts into lime milk without requiring thermal processing. It acts as a coagulant to remove heavy metals such as iron and aluminum. Additionally, it regulates pH, reduces pipeline corrosion, and decreases water hardness by precipitating calcium carbonate and magnesium carbonate, ensuring compliance with standard treatment requirements.
Hydrated Lime in Waste-to-Energy (WTE)
Hydrated Lime is used to purify flue gases in waste incineration power plants (Waste-to-Energy – WTE). It effectively removes acidic and toxic gases, ensuring compliance with stringent air quality regulations and emission limits.
